package com.example;
import com.example.R;

import android.app.Activity;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.Loader;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.BitmapFactory.Options;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageView;


public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		
		// http://developer.android.com/training/displaying-bitmaps/load-bitmap.html#load-bitmap
	}
	
	public void setSize(View v) {
		EditText txtX = (EditText) findViewById(R.id.editText1);
		EditText txtY = (EditText) findViewById(R.id.editText2);
		int x = Integer.parseInt(txtX.getText().toString());
		int y = Integer.parseInt(txtY.getText().toString());
		ImageView img = (ImageView) findViewById(R.id.imageView1);
//		Options opt = BitmapFactory.
//		Bitmap bm = BitmapFactory.decodeResource(getResources().getDrawable(R.drawable.ymicon), id, opts)
//		img.setImageDrawable(getResources().getDrawable(R.drawable.ymicon));
		img.setImageBitmap(decodeSampledBitmapFromResource(getResources(), R.drawable.ymicon, x, y));
	}
	
	public static Bitmap decodeSampledBitmapFromResource(Resources res, int resId, int reqWidth, int reqHeight) {
	    // First decode with inJustDecodeBounds=true to check dimensions
	    final BitmapFactory.Options options = new BitmapFactory.Options();
	    options.inJustDecodeBounds = true;
	    BitmapFactory.decodeResource(res, resId, options);
	    // Calculate inSampleSize
	    options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
	    // Decode bitmap with inSampleSize set
	    options.inJustDecodeBounds = false;
	    return BitmapFactory.decodeResource(res, resId, options);
	}
	public static int calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight) {
	    // Raw height and width of image
	    final int height = options.outHeight;
	    final int width = options.outWidth;
	    int inSampleSize = 1;
	    if (height > reqHeight || width > reqWidth) {
	        final int halfHeight = height / 2;
	        final int halfWidth = width / 2;
	        // Calculate the largest inSampleSize value that is a power of 2 and keeps both
	        // height and width larger than the requested height and width.
	        while ((halfHeight / inSampleSize) > reqHeight
	                && (halfWidth / inSampleSize) > reqWidth) {
	            inSampleSize *= 2;
	        }
	    }
	    return inSampleSize;
	}
}
